package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class JDBCDemo4 {
    public static void main(String[] args) throws Exception {
        Class.forName("com.mysql.cj.jdbc.Driver");

        Connection conn = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root");
        System.out.println("与数据库连接成功！");
        Statement stat = conn.createStatement();
        String sql = "UPDATE userinfo\n" +
                "SET nickname = '大白'\n" +
                "WHERE id = 1";
        int num = stat.executeUpdate(sql);
        System.out.println(num > 0 ? "修改成功" : "修改失败");
        conn.close();

    }
}
